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17018 (1999 DB1)
Classification: Main-belt Asteroid          SPK-ID: 2017018
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1349878179247684 2.9481e-08  
a 2.249611351282634 7.1703e-09 au
q 1.945941223794202 6.6167e-08 au
i 2.109543085782634 3.2828e-06 deg
node 228.4328382852467 9.654e-05 deg
peri 52.96278312696155 9.7508e-05 deg
M 41.99514002837388 1.468e-05 deg
tp 2459056.733995897423
(2020-Jul-26.23399590)
5.0082e-05 TDB
period 1232.422643238222
3.37
5.8922e-06
1.613e-08
d
yr
n .2921075833644949 1.3966e-09 deg/d
Q 2.553281478771066 8.1382e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1712  
   data-arc span      9039 days (24.75 yr)  
   first obs. used      1996-03-17  
   last obs. used      2020-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:31:54  

Additional Information
 Earth MOID = .928491 au 
 Jupiter MOID = 2.56135 au 
 T_jup = 3.615 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.98   n/a E2021B10  
diameter diameter 2.934 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.31832 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.271   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17018 (1999 DB1)          Discovered 1999-Feb-18 by JPL/GEODSS NEAT at Haleakala
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 DB1 = 1997 SD21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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